When Specialized's Turbo e-bike launched last year, it was almost too fast for its own good when it couldn't legally be sold in Europe and the US. The American riders, at least, won't be held back now that the Turbo is on sale in their country. The US version costs an eye-watering $5,900, but it can reach the same 27.9MPH peak speed through its combination of pedal power and the 250W of typical output from the electric motor. With that kind of performance, it could almost pay for itself -- who wouldn't want to blow past rush hour traffic in the bike lane?